KR930008188Y1 - 과전류 보호 교류전원 스위치 회로 - Google Patents
과전류 보호 교류전원 스위치 회로 Download PDFInfo
- Publication number
- KR930008188Y1 KR930008188Y1 KR2019890009161U KR890009161U KR930008188Y1 KR 930008188 Y1 KR930008188 Y1 KR 930008188Y1 KR 2019890009161 U KR2019890009161 U KR 2019890009161U KR 890009161 U KR890009161 U KR 890009161U KR 930008188 Y1 KR930008188 Y1 KR 930008188Y1
- Authority
- KR
- South Korea
- Prior art keywords
- circuit
- switch
- square wave
- transistor
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/008—Intrinsically safe circuits
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Keying Circuit Devices (AREA)
Abstract
Description
Claims (1)
- 저항(R1),(R2)에 의해 분할된 교류전원(AC)에 의해 상호 반대로 동작하는 발광다이오드(D1)(D2)와, 상기 발광다이오드(D1)(D2)에 의해 동작하는 수광용 트랜지스터(TR1)의 에미터단에서 검출되는 파형을 입력으로 하여 구형파를 발생하는 파형정형회로(1)와, 스위치(S2)에 의해 동작하여 상기 파형정형회로(1)에서 발생하는 구형파의 주기(T1)와 동일한 주기(T2)를 갖는 한개의 펄스를 갖는 구형파를 발생하는 단안정회로(2)와, 상기 파형정형회로(1)와 단안정회로(2)에 의해 동작하여 쌍안정회로(3)에 한개의 펄스를 갖는 구평파를 인가하는 트랜지스터(TR2)(TR3)와, 상기 트랜지스터(TR2)(TR3)의 동작에 의해 발생하는 구형파를 입력으로 하여 트랜지스터(TR4)를 제어하는 쌍안정회로(3)와, 상기 쌍안정회로(3)에 제어되는 트랜지스터(TR4)에 의해 제어되어 스위치(S1)를 제어하는 릴레이(RL1)와, 상기 릴레이(RL1)에 의해 제어되어 부하(Z)에 인가되는 교류전원(AC)을 제어하는 스위치(S1)를 포함하여 구성된 것을 특징으로 하는 과전류 보호 교류 전원 스위치회로.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019890009161U KR930008188Y1 (ko) | 1989-06-29 | 1989-06-29 | 과전류 보호 교류전원 스위치 회로 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019890009161U KR930008188Y1 (ko) | 1989-06-29 | 1989-06-29 | 과전류 보호 교류전원 스위치 회로 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR910001652U KR910001652U (ko) | 1991-01-24 |
KR930008188Y1 true KR930008188Y1 (ko) | 1993-12-10 |
Family
ID=19287618
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019890009161U Expired - Fee Related KR930008188Y1 (ko) | 1989-06-29 | 1989-06-29 | 과전류 보호 교류전원 스위치 회로 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR930008188Y1 (ko) |
-
1989
- 1989-06-29 KR KR2019890009161U patent/KR930008188Y1/ko not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR910001652U (ko) | 1991-01-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
UA0108 | Application for utility model registration |
Comment text: Application for Utility Model Registration Patent event code: UA01011R08D Patent event date: 19890629 |
|
UG1501 | Laying open of application | ||
A201 | Request for examination | ||
UA0201 | Request for examination |
Patent event date: 19920312 Patent event code: UA02012R01D Comment text: Request for Examination of Application Patent event date: 19890629 Patent event code: UA02011R01I Comment text: Application for Utility Model Registration |
|
UG1604 | Publication of application |
Patent event code: UG16041S01I Comment text: Decision on Publication of Application Patent event date: 19931118 |
|
E701 | Decision to grant or registration of patent right | ||
UE0701 | Decision of registration |
Patent event date: 19940222 Comment text: Decision to Grant Registration Patent event code: UE07011S01D |
|
REGI | Registration of establishment | ||
UR0701 | Registration of establishment |
Patent event date: 19940314 Patent event code: UR07011E01D Comment text: Registration of Establishment |
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UR1002 | Payment of registration fee |
Start annual number: 1 End annual number: 3 Payment date: 19940314 |
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UR1001 | Payment of annual fee |
Payment date: 19961202 Start annual number: 4 End annual number: 4 |
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UR1001 | Payment of annual fee |
Payment date: 19971128 Start annual number: 5 End annual number: 5 |
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UR1001 | Payment of annual fee |
Payment date: 19981202 Start annual number: 6 End annual number: 6 |
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UR1001 | Payment of annual fee |
Payment date: 19991202 Start annual number: 7 End annual number: 7 |
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FPAY | Annual fee payment |
Payment date: 20001128 Year of fee payment: 8 |
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UR1001 | Payment of annual fee |
Payment date: 20001128 Start annual number: 8 End annual number: 8 |
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LAPS | Lapse due to unpaid annual fee | ||
UC1903 | Unpaid annual fee |